Exemplo n.º 1
0
/**
 * ispresizer_config_size - Configures input and output image size.
 * @pipe: Resizer data path parameters.
 *
 * Configures the appropriate values stored in the isp_res structure in the
 * resizer registers.
 *
 * Returns 0 if successful, or -EINVAL if passed values haven't been verified
 * with ispresizer_try_size() previously.
 **/
int ispresizer_s_pipeline(struct isp_res_device *isp_res,
			  struct isp_node *pipe)
{
	struct device *dev = to_device(isp_res);
	int bpp = ISP_BYTES_PER_PIXEL;

	ispresizer_set_source(isp_res, pipe->in.path);
	ispresizer_set_intype(isp_res, pipe->in.path);
	ispresizer_set_start_phase(dev, NULL);
	ispresizer_set_luma_enhance(dev, NULL);

	if (pipe->in.image.pixelformat == V4L2_PIX_FMT_YUYV)
		ispresizer_config_ycpos(isp_res, 1);
	else
		ispresizer_config_ycpos(isp_res, 0);

	ispresizer_try_pipeline(isp_res, pipe);

	ispresizer_set_ratio(dev, isp_res->h_resz, isp_res->v_resz);
	ispresizer_set_coeffs(dev, NULL, isp_res->h_resz, isp_res->v_resz);

	/* Switch filter, releated to up/down scale */
	if (ispresizer_is_upscale(pipe))
		ispresizer_enable_cbilin(isp_res, 1);
	else
		ispresizer_enable_cbilin(isp_res, 0);

	/* Set input and output size */
	ispresizer_set_input_size(dev, isp_res->phy_rect.width,
				  isp_res->phy_rect.height);
	ispresizer_set_output_size(dev, pipe->out.image.width,
				   pipe->out.image.height);

	/* Set input address and line offset address */
	if (pipe->in.path != RSZ_OTFLY_YUV) {
		/* Set the input address, plus calculated crop offset */
		ispresizer_set_inaddr(isp_res, isp_res->in_buff_addr, pipe);
		/* Set the input line offset/length */
		ispresizer_set_in_offset(isp_res, pipe->in.image.bytesperline);
	} else {
		/* Set the input address.*/
		ispresizer_set_inaddr(isp_res, 0, NULL);
		/* Set the starting pixel offset */
		ispresizer_set_start(dev, isp_res->phy_rect.left * bpp,
				     isp_res->phy_rect.top);
		ispresizer_set_in_offset(isp_res, 0);
	}

	/* Set output line offset */
	ispresizer_set_out_offset(isp_res, pipe->out.image.bytesperline);

	return 0;
}
Exemplo n.º 2
0
/**
 * ispresizer_config_datapath - Specifies which input to use in resizer module
 * @input: Indicates the module that gives the image to resizer.
 *
 * Sets up the default resizer configuration according to the arguments.
 *
 * Returns 0 if successful, or -1 if an unsupported input was requested.
 **/
int ispresizer_config_datapath(enum ispresizer_input input)
{
	u32 cnt = 0;
	DPRINTK_ISPRESZ("ispresizer_config_datapath()+\n");
	ispres_obj.resinput = input;
	switch (input) {
	case RSZ_OTFLY_YUV:
		cnt &= ~ISPRSZ_CNT_INPTYP;
		cnt &= ~ISPRSZ_CNT_INPSRC;
		ispresizer_set_inaddr(0);
		ispresizer_config_inlineoffset(0);
		break;
	case RSZ_MEM_YUV:
		cnt |= ISPRSZ_CNT_INPSRC;
		cnt &= ~ISPRSZ_CNT_INPTYP;
		break;
	case RSZ_MEM_COL8:
		cnt |= ISPRSZ_CNT_INPSRC;
		cnt |= ISPRSZ_CNT_INPTYP;
		break;
	default:
		DPRINTK_ISPRESZ( "ISP_ERR : Wrong Input\n");
		return -1;
	}
	isp_reg_or(OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, cnt);
	//ispresizer_config_ycpos(0);
	ispresizer_config_ycpos(1);
	ispresizer_config_filter_coef(&ispreszdefcoef);
	ispresizer_enable_cbilin(0);
	ispresizer_config_luma_enhance(&ispreszdefaultyenh);
	DPRINTK_ISPRESZ("ispresizer_config_datapath()-\n");
	return 0;
}
Exemplo n.º 3
0
/**
 * ispresizer_applycrop - Apply crop to input image.
 **/
void ispresizer_applycrop(struct isp_res_device *isp_res)
{
	struct isp_device *isp = to_isp_device(isp_res);
	struct isp_node *pipe = &isp->pipeline.rsz;
	int bpp = ISP_BYTES_PER_PIXEL;

	if (!isp_res->applycrop)
		return;

	ispresizer_set_ratio(isp->dev, isp_res->h_resz, isp_res->v_resz);
	ispresizer_set_coeffs(isp->dev, NULL, isp_res->h_resz, isp_res->v_resz);

	/* Switch filter, releated to up/down scale */
	if (ispresizer_is_upscale(pipe))
		ispresizer_enable_cbilin(isp_res, 1);
	else
		ispresizer_enable_cbilin(isp_res, 0);

	/* Set input and output size */
	ispresizer_set_input_size(isp->dev, isp_res->phy_rect.width,
				  isp_res->phy_rect.height);
	ispresizer_set_output_size(isp->dev, pipe->out.image.width,
				   pipe->out.image.height);

	/* Set input address and line offset address */
	if (pipe->in.path != RSZ_OTFLY_YUV) {
		/* Set the input address, plus calculated crop offset */
		ispresizer_set_inaddr(isp_res, isp_res->in_buff_addr, pipe);
		/* Set the input line offset/length */
		ispresizer_set_in_offset(isp_res, pipe->in.image.bytesperline);
	} else {
		/* Set the input address.*/
		ispresizer_set_inaddr(isp_res, 0, NULL);
		/* Set the starting pixel offset */
		ispresizer_set_start(isp->dev, isp_res->phy_rect.left * bpp,
				     isp_res->phy_rect.top);
		ispresizer_set_in_offset(isp_res, 0);
	}

	/* Set output line offset */
	ispresizer_set_out_offset(isp_res, pipe->out.image.bytesperline);

	isp_res->applycrop = 0;
}
Exemplo n.º 4
0
/**
 * ispresizer_config_datapath - Specifies which input to use in resizer module
 * @input: Indicates the module that gives the image to resizer.
 *
 * Sets up the default resizer configuration according to the arguments.
 *
 * Returns 0 if successful, or -EINVAL if an unsupported input was requested.
 **/
int ispresizer_config_datapath(enum ispresizer_input input)
{
	u32 cnt = 0;
	DPRINTK_ISPRESZ("ispresizer_config_datapath()+\n");
	ispres_obj.resinput = input;
	switch (input) {
	case RSZ_OTFLY_YUV:
		cnt &= ~ISPRSZ_CNT_INPTYP;
		cnt &= ~ISPRSZ_CNT_INPSRC;
		ispresizer_set_inaddr(0);
		ispresizer_config_inlineoffset(0);
		break;
	case RSZ_MEM_YUV:
		cnt |= ISPRSZ_CNT_INPSRC;
		cnt &= ~ISPRSZ_CNT_INPTYP;
		break;
	case RSZ_MEM_COL8:
		cnt |= ISPRSZ_CNT_INPSRC;
		cnt |= ISPRSZ_CNT_INPTYP;
		break;
	default:
		printk(KERN_ERR "ISP_ERR : Wrong Input\n");
		return -EINVAL;
	}
	isp_reg_or(OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, cnt);

	/* Use bilinear interpolation for upsampling per TRM */
	if (ispres_obj.outputwidth > ispres_obj.inputwidth)
		ispresizer_enable_cbilin(1);
	else
		ispresizer_enable_cbilin(0);

	ispresizer_config_ycpos(0);
	ispresizer_config_filter_coef(&ispreszdefcoef);
	ispresizer_config_luma_enhance(&ispreszdefaultyenh);
	DPRINTK_ISPRESZ("ispresizer_config_datapath()-\n");
	return 0;
}
Exemplo n.º 5
0
/** ispdss_begin - Function to be called by DSS when resizing of the input
  * image buffer is needed
  * @slot: buffer index where the input image is stored
  * @output_buffer_index: output buffer index where output of resizer will
  * be stored
  * @out_off: The line size in bytes for output buffer. as most probably
  * this will be VRFB with YUV422 data, it should come 0x2000 as input
  * @out_phy_add: physical address of the start of output memory area for this
  * @in_phy_add: physical address of the start of input memory area for this
  * @in_off:: The line size in bytes for output buffer.
  * ispdss_begin()  takes the input buffer index and output buffer index
  * to start the process of resizing. after resizing is complete,
  * the callback function will be called with the argument.
  * Indexes of the input and output buffers are used so that it is faster
  * and easier to configure the input and output address for the ISP resizer.
  * As per the current implementation, DSS uses six VRFB contexts for rotation.
  * for both input and output buffers index and physical address has been taken
  * as argument. if this buffer is not already mapped to ISP address space we
  * use physical address to map it, otherwise only the index is used.
  **/
int ispdss_begin(struct isp_node *pipe, u32 input_buffer_index,
		 int output_buffer_index, u32 out_off, u32 out_phy_add,
		 u32 in_phy_add, u32 in_off)
{
	unsigned int output_size;
	struct isp_device *isp = dev_get_drvdata(dev_ctx.isp);
	struct isp_res_device *isp_res = &isp->isp_res;
//LGE_CHANGE_S [[email protected]]  2011_04_22, for improve ISP to get 30fps (OMAPS00236923)
	u32 speed_val = 0;
//LGE_CHANGE_E [[email protected]]  2011_04_22, for improve ISP to get 30fps (OMAPS00236923)	

//LGE_CHANGE_S [[email protected]] 2011_07_19 Froyo_to_GB
	struct device *dev = to_device(isp_res);
//LGE_CHANGE_E [[email protected]] 2011_07_19 Froyo_to_GB

	if (output_buffer_index >= dev_ctx.num_video_buffers) {
		dev_err(dev_ctx.isp,
		"ouput buffer index is out of range %d", output_buffer_index);
		return -EINVAL;
	}

	if (dev_ctx.config_state != STATE_CONFIGURED) {
		dev_err(dev_ctx.isp, "State not configured \n");
		return -EINVAL;
	}

	dev_ctx.tmp_buf_size = PAGE_ALIGN(pipe->out.image.bytesperline *
					  pipe->out.image.height);
	ispdss_tmp_buf_alloc(dev_ctx.tmp_buf_size);

	pipe->in.path = RSZ_MEM_YUV;
	if (ispresizer_s_pipeline(isp_res, pipe) != 0)
		return -EINVAL;

	/* If this output buffer has not been mapped till now then map it */
	if (!dev_ctx.out_buf_virt_addr[output_buffer_index]) {
		output_size = pipe->out.image.height * out_off;
		dev_ctx.out_buf_virt_addr[output_buffer_index] =
			iommu_kmap(isp->iommu, 0, out_phy_add, output_size,
				   IOMMU_FLAG);
		if (IS_ERR_VALUE(
			dev_ctx.out_buf_virt_addr[output_buffer_index])) {
			dev_err(dev_ctx.isp, "Mapping of output buffer failed"
						"for index \n");
			return -ENOMEM;
		}
	}

	if (!dev_ctx.in_buf_virt_addr[input_buffer_index]) {
		dev_ctx.in_buf_virt_addr[input_buffer_index] =
			iommu_kmap(isp->iommu, 0, in_phy_add, in_off,
				   IOMMU_FLAG);
		if (IS_ERR_VALUE(
			dev_ctx.in_buf_virt_addr[input_buffer_index])) {
			dev_err(dev_ctx.isp, "Mapping of input buffer failed"
						"for index \n");
			return -ENOMEM;
		}
	}

	if (ispresizer_set_inaddr(isp_res,
				  dev_ctx.in_buf_virt_addr[input_buffer_index],
				  pipe) != 0)
		return -EINVAL;

	if (ispresizer_set_out_offset(isp_res, out_off) != 0)
		return -EINVAL;

	if (ispresizer_set_outaddr(isp_res,
		(u32)dev_ctx.out_buf_virt_addr[output_buffer_index]) != 0)
		return -EINVAL;

	/* Set ISP callback for the resizing complete even */
	if (isp_set_callback(dev_ctx.isp, CBK_RESZ_DONE, ispdss_isr,
			     (void *) NULL, (void *)NULL)) {
		dev_err(dev_ctx.isp, "No callback for RSZR\n");
		return -1;
	}

	/* All settings are done.Enable the resizer */
	init_completion(&dev_ctx.compl_isr);

//LGE_CHANGE_S [[email protected]]  2011_04_22, for improve ISP to get 30fps (OMAPS00236923)
//	isp_start(dev_ctx.isp);
	/* Only for 720p case*/
	if (use_isp_resizer_decoder){
		/*decoder */
		speed_val = 0;

	}else{
		/* encoder */
		speed_val = 8;

	}
//LGE_CHANGE_S [[email protected]] 2011_07_19 Froyo_to_GB
	
	isp_reg_and_or(dev, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP,
		       ~ISPSBL_SDR_REQ_RSZ_EXP_MASK,
				speed_val << ISPSBL_SDR_REQ_RSZ_EXP_SHIFT);

	isp_start(dev_ctx.isp);
//LGE_CHANGE_E [[email protected]] 2011_07_19 Froyo_to_GB
	ispresizer_enable(isp_res, 1);

	/* Wait for resizing complete event */
	if (wait_for_completion_interruptible_timeout(
				&dev_ctx.compl_isr, msecs_to_jiffies(500)) == 0)
		dev_crit(dev_ctx.isp, "\nTimeout exit from "
			 "wait_for_completion\n");

	/* Unset the ISP callback function */
	isp_unset_callback(dev_ctx.isp, CBK_RESZ_DONE);

	return 0;
}
Exemplo n.º 6
0
int isp_resize_mem_data(struct isp_mem_resize_data *data)
{
	int i;
	int ret = -1;
	struct isp_mem_resize_data *presizer_user = \
		(struct isp_mem_resize_data *)data;
	u32 input_buffer_size, output_buffer_size;
	u32 input_nr_pages, output_nr_pages;
	struct page **input_pages = NULL;
	struct page **output_pages = NULL;
	unsigned long isp_addr_in = 0;
	unsigned long  isp_addr_out = 0;
	struct isp_mem_resize_data resizer_param;
	unsigned long timeout;

	if (presizer_user == NULL) {
		printk(KERN_ERR "ISP_RESZ_ERR : Invalid user data\n");
		return -EINVAL;
	}

	memcpy(&resizer_param, presizer_user, \
		sizeof(struct isp_mem_resize_data));

	DPRINTK_ISPPROC("\nRSZ input(%d-%d) - output(%d-%d)\n",
		resizer_param.input_width,
		resizer_param.input_height,
		resizer_param.output_width,
		resizer_param.output_height);

	DPRINTK_ISPPROC("RSZ start(%d-%d) - end(%d-%d)\n",
		resizer_param.left,
		resizer_param.top,
		resizer_param.crop_width,
		resizer_param.crop_height);

	if (presizer_user->datain == 0 || presizer_user->dataout == 0)
		return -EINVAL;

	ispresizer_enable(0);
	timeout = jiffies + msecs_to_jiffies(200);
	while (ispresizer_busy()) {
		if (time_after(jiffies, timeout))
			return -EINVAL;
		msleep(1);
	}

	ispresizer_save_context();
	ispresizer_free();
	ispresizer_request();

	/* set data path before configuring modules. */
	ispresizer_config_datapath(RSZ_MEM_YUV, 0);

	input_buffer_size = ALIGN_TO(presizer_user->input_width* \
		presizer_user->input_height*2 , 0x100);
	input_pages = map_user_memory_to_kernel(presizer_user->datain,
		input_buffer_size, &input_nr_pages);
	if (input_pages == NULL) {
		ret = -EINVAL;
		printk(KERN_ERR "ISP_RESZ_ERR: memory allocation failed\n");
		goto exit_cleanup;
	}

	output_buffer_size = ALIGN_TO(presizer_user->output_width* \
		presizer_user->output_height*2, 0x1000);
	output_pages = map_user_memory_to_kernel(presizer_user->dataout,
		output_buffer_size, &output_nr_pages);
	if (output_pages == NULL) {
		ret = -EINVAL;
		printk(KERN_ERR "ISP_RESZ_ERR: memory allocation failed\n");
		goto exit_cleanup;
	}
	for (i = 0; i < output_nr_pages; ++i)
		flush_dcache_page(output_pages[i]);

	isp_addr_in = ispmmu_vmap_pages(input_pages, input_nr_pages);
	if (IS_ERR((void *)isp_addr_in)) {
		isp_addr_in = 0;
		ret = -EINVAL;
		printk(KERN_ERR "ISP_RESZ_ERR: isp mmu map failed\n");
		goto exit_cleanup;
	}
	isp_addr_out = ispmmu_vmap_pages(output_pages, output_nr_pages);
	if (IS_ERR((void *)isp_addr_out)) {
		isp_addr_out = 0;
		ret = -EINVAL;
		printk(KERN_ERR "ISP_RESZ_ERR:  isp mmu map failed\n");
		goto exit_cleanup;
	}

	if ((resizer_param.left == 0) && (resizer_param.top == 0)) {
		ret = ispresizer_try_size(&resizer_param.input_width,
					&resizer_param.input_height,
					&resizer_param.output_width,
					&resizer_param.output_height);

		ret = ispresizer_config_size(resizer_param.input_width,
					resizer_param.input_height,
					resizer_param.output_width,
					resizer_param.output_height);

		ispresizer_set_inaddr(isp_addr_in);
	} else {
		ispresizer_trycrop(resizer_param.left,
					resizer_param.top,
					resizer_param.crop_width,
					resizer_param.crop_height,
					resizer_param.output_width,
					resizer_param.output_height);

		ispresizer_applycrop();

		/*pixel alignment in 32bit space, vertical must be 0 per TRM */
		isp_reg_writel(((resizer_param.left%16) <<
				ISPRSZ_IN_START_HORZ_ST_SHIFT) |
				(0 <<
				ISPRSZ_IN_START_VERT_ST_SHIFT),
				OMAP3_ISP_IOMEM_RESZ,
				ISPRSZ_IN_START);

		/* Align input address for cropping, per TRM  */
		ispresizer_set_inaddr(isp_addr_in +
			(resizer_param.top*resizer_param.input_width*2)
			+ ((resizer_param.left/16)*32));
	}

	ispresizer_set_inaddr(isp_addr_in);
	ispresizer_set_outaddr(isp_addr_out);
	ispresizer_config_ycpos(0);
	ispresizer_config_inlineoffset(
		ALIGN_TO(presizer_user->input_width*2, 32));

	isp_set_callback(CBK_RESZ_DONE, rsz_isr, (void *) NULL, (void *)NULL);
	isp_reg_writel(0xFFFFFFFF, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
	isp_wfc.done = 0;
	/* start resizer engine. */
	ispresizer_enable(1);

	ret = wait_for_completion_timeout(&isp_wfc, msecs_to_jiffies(1000));
	if (!ret)
		ispresizer_enable(0);

	timeout = jiffies + msecs_to_jiffies(50);
	while (ispresizer_busy()) {
		msleep(5);
		if (time_after(jiffies, timeout)) {
			printk(KERN_ERR "ISP_RESZ_ERR: Resizer still busy");
			break;
		}
	}

	isp_reg_writel(0xFFFFFFFF, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
	isp_unset_callback(CBK_RESZ_DONE);
	ret = 0;

exit_cleanup:
	ispresizer_restore_context();

	if (isp_addr_in != 0)
		ispmmu_vunmap(isp_addr_in);
	if (isp_addr_out != 0)
		ispmmu_vunmap(isp_addr_out);
	if (input_pages != NULL) {
		unmap_user_memory_from_kernel(input_pages, input_nr_pages);
		kfree(input_pages);
	}
	if (output_pages != NULL) {
		unmap_user_memory_from_kernel(output_pages, output_nr_pages);
		kfree(output_pages);
	}

	DPRINTK_ISPPROC("resizer exit.\n");

	return ret;
}
Exemplo n.º 7
0
int isp_process_mem_data(struct isp_mem_data *data)
{
	int i;
	int ret = -1;
	struct isp_mem_data *ppreview_user = \
		(struct isp_mem_data *)data;
	struct isp_mem_data preview_param;
	u32 input_buffer_size, output_buffer_size;
	u32 input_nr_pages, output_nr_pages;
	struct page **input_pages = NULL;
	struct page **output_pages = NULL;
	unsigned long isp_addr_in = 0;
	unsigned long  isp_addr_out = 0;
	unsigned long  isp_addr_tmp = 0;
	unsigned long timeout;
	struct isp_mem_resize_data resizer_param;
	u16 cropadjust = 0;

	if (ppreview_user == NULL) {
		printk(KERN_ERR "ISP_PROC_ERR: Invalid user data!\n");
		return -EINVAL;
	}

	memcpy(&preview_param, ppreview_user, \
		sizeof(struct isp_mem_data));

	DPRINTK_ISPPROC("input(%d-%d) - output(%d-%d)\n",
		preview_param.input_width,
		preview_param.input_height,
		preview_param.output_width,
		preview_param.output_height);

	DPRINTK_ISPPROC("start(%d-%d) - end(%d-%d)\n",
		preview_param.left,
		preview_param.top,
		preview_param.crop_width,
		preview_param.crop_height);

	if (ppreview_user->datain == 0 || ppreview_user->dataout == 0)
		return -EINVAL;

	isppreview_enable(0);
	ispresizer_enable(0);
	timeout = jiffies + msecs_to_jiffies(200);
	while (isppreview_busy() ||
			ispresizer_busy()) {
		if (time_after(jiffies, timeout))
			return -EINVAL;
		msleep(1);
	}

	isppreview_save_context();
	ispresizer_save_context();
	isppreview_free();
	ispresizer_free();
	isppreview_request();
	ispresizer_request();

	/* set data path before configuring modules. */
	isppreview_update_datapath(PRV_RAW_MEM, PREVIEW_MEM);
	ispresizer_config_datapath(RSZ_MEM_YUV, 0);

	ret = isppreview_try_size(preview_param.input_width,
		preview_param.input_height,
		&preview_param.output_width,
		&preview_param.output_height);
	if (ret < 0)
		goto exit_cleanup;
	ret = isppreview_config_size(preview_param.input_width,
		preview_param.input_height,
		preview_param.output_width,
		preview_param.output_height);
	if (ret < 0)
		goto exit_cleanup;

	input_buffer_size = ALIGN_TO(ppreview_user->input_width* \
		ppreview_user->input_height*2 , 0x100);
	input_pages = map_user_memory_to_kernel(preview_param.datain,
		input_buffer_size, &input_nr_pages);
	if (input_pages == NULL) {
		ret = -EINVAL;
		printk(KERN_ERR "ISP_PROC_ERR: memory allocation failed\n");
		goto exit_cleanup;
	}

	output_buffer_size = ALIGN_TO(ppreview_user->output_width* \
		ppreview_user->output_height*2, 0x1000);
	output_pages = map_user_memory_to_kernel(preview_param.dataout,
		output_buffer_size, &output_nr_pages);
	if (output_pages == NULL) {
		ret = -EINVAL;
		printk(KERN_ERR "ISP_PROC_ERR: memory allocation failed\n");
		goto exit_cleanup;
	}
	for (i = 0; i < output_nr_pages; ++i)
		flush_dcache_page(output_pages[i]);

	isp_addr_in = ispmmu_vmap_pages(input_pages, input_nr_pages);
	if (IS_ERR((void *)isp_addr_in)) {
		isp_addr_in = 0;
		ret = -EINVAL;
		printk(KERN_ERR "ISP_PROC_ERR: isp mmu map failed\n");
		goto exit_cleanup;
	}
	isp_addr_out = ispmmu_vmap_pages(output_pages, output_nr_pages);
	if (IS_ERR((void *)isp_addr_out)) {
		isp_addr_out = 0;
		ret = -EINVAL;
		printk(KERN_ERR "ISP_PROC_ERR: isp mmu map failed\n");
		goto exit_cleanup;
	}

	/* This buffer must be allocated and mapped to
		the ISP MMU previously. */
	isp_addr_tmp = isp_tmp_buf_addr();
	if (isp_addr_tmp == 0) {
		printk(KERN_ERR "ISP_PROC_ERR: Invalid isp tmp buffer address!\n");
		goto exit_cleanup;
	}

	isppreview_config_inlineoffset(ppreview_user->input_width * 2);
	isppreview_set_inaddr(isp_addr_in);
	isppreview_set_outaddr(isp_addr_tmp);

	resizer_param.input_width = preview_param.output_width;
	resizer_param.input_height = preview_param.output_height;
	resizer_param.output_width = ppreview_user->output_width;
	resizer_param.output_height = ppreview_user->output_height;

	if ((preview_param.left == 0) && (preview_param.top == 0)) {
		ret = ispresizer_try_size(&resizer_param.input_width,
				&resizer_param.input_height,
				&resizer_param.output_width,
				&resizer_param.output_height);
		if (ret < 0)
			goto exit_cleanup;
		ret = ispresizer_config_size(resizer_param.input_width,
				resizer_param.input_height,
				resizer_param.output_width,
				resizer_param.output_height);
		if (ret < 0)
			goto exit_cleanup;
		ispresizer_set_inaddr(isp_addr_tmp);
	} else {
		ispresizer_trycrop(preview_param.left,
				preview_param.top,
				preview_param.crop_width,
				preview_param.crop_height,
				resizer_param.output_width,
				resizer_param.output_height);

		ispresizer_applycrop();

		/* account for pixel loss when using crop*/
		if ((preview_param.input_height > preview_param.output_height)
				&& (preview_param.top > 16))
			cropadjust = 8;
		else
			cropadjust = 0;

		/* pixel alignment in 32bit space, vertical must be 0 per TRM */
		isp_reg_writel(((preview_param.left%16) <<
					ISPRSZ_IN_START_HORZ_ST_SHIFT) |
					(0 <<
					ISPRSZ_IN_START_VERT_ST_SHIFT),
					OMAP3_ISP_IOMEM_RESZ,
					ISPRSZ_IN_START);

		/* Align input address for cropping, per TRM  */
		ispresizer_set_inaddr(isp_addr_tmp -
				(resizer_param.input_width*2*cropadjust) +
				(preview_param.top*resizer_param.input_width*2)
				+ ((preview_param.left/16)*32));
	}

	ispresizer_set_outaddr(isp_addr_out);
	ispresizer_config_inlineoffset(
		ALIGN_TO(resizer_param.input_width*2, 32));

	if (isp_set_callback(CBK_PREV_DONE, prv_isr,
			(void *) NULL, (void *)NULL) != 0) {
		printk(KERN_ERR "ISP_PROC_ERR: Error setting PRV callback.\n");
		goto exit_cleanup;
	}

	if (isp_set_callback(CBK_RESZ_DONE, rsz_isr,
			(void *) NULL, (void *)NULL) != 0) {
		printk(KERN_ERR "ISP_PROC_ERR: Error setting RSZ callback.\n");
		goto exit_cleanup;
	}

	isp_reg_writel(0xFFFFFFFF, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
	isp_wfc.done = 0;

	/* start preview engine. */
	isppreview_enable(1);

	ret = wait_for_completion_timeout(&isp_wfc, msecs_to_jiffies(1000));
	if (!ret) {
		isppreview_enable(0);
		ispresizer_enable(0);
	}

	timeout = jiffies + msecs_to_jiffies(50);
	while (ispresizer_busy()) {
		msleep(5);
		if (time_after(jiffies, timeout)) {
			printk(KERN_ERR "ISP_RESZ_ERR: Resizer still busy");
			break;
		}
	}

	isp_reg_writel(0xFFFFFFFF, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
	isp_unset_callback(CBK_PREV_DONE);
	isp_unset_callback(CBK_RESZ_DONE);

exit_cleanup:
	isppreview_restore_context();
	ispresizer_restore_context();

	if (isp_addr_in != 0)
		ispmmu_vunmap(isp_addr_in);
	if (isp_addr_out != 0)
		ispmmu_vunmap(isp_addr_out);
	if (input_pages != NULL) {
		unmap_user_memory_from_kernel(input_pages, input_nr_pages);
		kfree(input_pages);
	}
	if (output_pages != NULL) {
		unmap_user_memory_from_kernel(output_pages, output_nr_pages);
		kfree(output_pages);
	}

	DPRINTK_ISPPROC("exit.\n");

	return ret;
}